They don't hint at what the project might be, or even what medium, except tha they say that Seiji Mizushima-- director of Fullmetal Alchemist, Gundam 00, and Shaman King –is involved. Considering he's never done a manga to my knowledge, well, it seems likely that it'll at least involve an anime (possibly an anime/manga conjunction sort of project).
So then the next question: will this be some kind of new work? An adaptation of a Young Gangan series (Fudanshism! FUDANSHISM!)? Some new iteration of a past Gainax title (though I think they're already pretty busy with the Evangelion movies)?
So, answer me this, Vice readers: what do you HOPE it is, and what do you hope it's NOT?
Gainax has more hits than misses, I'm crossing my FingersXD